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http://dx.doi.org/10.5139/JKSAS.2004.32.8.064

Numerical Investigation of the Lateral Jet Effect on the Aerodynamic Characteristics of the Missile: Part I. Jet Flow Condition Effect  

Min, Byung-Young (건국대학교 항공우주공학과 대학원)
Lee, Jae-Woo (건국대학교 차세대혁신기술연구원)
Byun, Yung-Hwan (건국대학교 차세대혁신기술연구원)
Hyun, Jae-Soo (국방과학연구소)
Kim, Sang-Ho (국방과학연구소)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.32, no.8, 2004 , pp. 64-71 More about this Journal
Abstract
A computational study on the supersonic flow around the lateral jet controlled missile has been performed. For this purpose a three dimensional Navier-Stokes computer code(AADL3D) has been developed and case studies have been performed by comparing the normal force coefficient and the moment coefficient of a missile body for different jet flow conditions including jet pressure and jet Mach number. The results show different behavior of normal force and moment variation according to jet pressure variation and jet Mach number variation. From the detailed flow field analyses, it is verified that most of the normal force loss and the pitching moment generation are taken place at the low-pressure region behind the jet nozzle. Furthermore, it is shown that the pitching moment can be efficiently reduced by obtaining the lateral thrust through higher jet Mach number rather than through high jet pressure.
Keywords
Lateral Jet; Shock Interaction; Missile; Moment; Normal Force; Jet Pressure; Jet Mach Number;
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